Application:
4) 1 food Calorie is equal to 4184 J.
a) Knowing this, about how many times would your runner have to go up the stairs in
order to burn off a 500-Calorie meal?
(soo)(4184)-20920o0 J
1667 timer
b) How long would it take them to burn off the meal?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque